EP0142207A1 - Lecktransformator mit kleinem Streufeld - Google Patents

Lecktransformator mit kleinem Streufeld Download PDF

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Publication number
EP0142207A1
EP0142207A1 EP84201621A EP84201621A EP0142207A1 EP 0142207 A1 EP0142207 A1 EP 0142207A1 EP 84201621 A EP84201621 A EP 84201621A EP 84201621 A EP84201621 A EP 84201621A EP 0142207 A1 EP0142207 A1 EP 0142207A1
Authority
EP
European Patent Office
Prior art keywords
coils
primary
air gap
transformer
stray field
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP84201621A
Other languages
English (en)
French (fr)
Inventor
Gerben Simon Hoeksma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nederlandsche Apparatenfabriek NEDAP NV
Original Assignee
Nederlandsche Apparatenfabriek NEDAP NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nederlandsche Apparatenfabriek NEDAP NV filed Critical Nederlandsche Apparatenfabriek NEDAP NV
Publication of EP0142207A1 publication Critical patent/EP0142207A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/04—Fixed inductances of the signal type with magnetic core
    • H01F17/043—Fixed inductances of the signal type with magnetic core with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)

Definitions

  • the invention relates to a leakage transformer with small stray field.
  • a leakage transformer is used, for example, in the D.C.-to-A.C. voltage converter disclosed in applicants' published European patent application 83 201 258.7 and in the Series Resonant Power Supply disclosed in, inter alia, "Proceedings of the Second International Power Conversion Conference 1980", pp. 2.8.1 to 2.8.18.
  • a sufficiently high leakage i.e. a coupling factor of from 60 to 90 percent between primary and secondary coils, can be obtained by winding the primary and the secondary winding on individual spools and mounting these spools each on the centre leg of an E-core half, which halves are separated by an air gap.
  • a drawback inherent in such a structure is the generation of a relatively large stray field liable to cause spurious signals in other circuitry or sensors.
  • a closed pot core transformer 1 includes a cover disc 2 having two through holes, a primary coil 3, a secondary coil 4 and a magnetic shunt 5 interposed between coils 3 and 4.
  • the air gap 6 is provided in the centre leg.
  • the stray field is now confined in the core, while the coupling factor can be adjusted by varying the ratio between air gap 6 in the centre leg and air gap 7 between shunt and centre leg and/or outer wall.
  • they can be placed in a housing 8 and fixed by means of a suitable cast mass 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Regulation Of General Use Transformers (AREA)
EP84201621A 1983-11-10 1984-11-08 Lecktransformator mit kleinem Streufeld Withdrawn EP0142207A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8303994 1983-11-10
NL8303994A NL8303994A (nl) 1983-11-10 1983-11-10 Strooiveldarme lektransformator.

Publications (1)

Publication Number Publication Date
EP0142207A1 true EP0142207A1 (de) 1985-05-22

Family

ID=19842744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201621A Withdrawn EP0142207A1 (de) 1983-11-10 1984-11-08 Lecktransformator mit kleinem Streufeld

Country Status (3)

Country Link
EP (1) EP0142207A1 (de)
JP (1) JPS60216521A (de)
NL (1) NL8303994A (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10349401B3 (de) * 2003-10-21 2004-07-29 Grenzebach Bsh Gmbh Furniertrockner
WO2009114872A1 (en) * 2008-03-14 2009-09-17 Volterra Semiconductor Corporation Magnetic components with m-phase coupling, and related inductor structures
US7746209B1 (en) 2002-12-13 2010-06-29 Volterra Semiconductor Corporation Method for making magnetic components with N-phase coupling, and related inductor structures
US7893806B1 (en) 2002-12-13 2011-02-22 Volterra Semiconductor Corporation Method for making magnetic components with N-phase coupling, and related inductor structures
US7965165B2 (en) 2002-12-13 2011-06-21 Volterra Semiconductor Corporation Method for making magnetic components with M-phase coupling, and related inductor structures
US7994888B2 (en) 2009-12-21 2011-08-09 Volterra Semiconductor Corporation Multi-turn inductors
US8102233B2 (en) 2009-08-10 2012-01-24 Volterra Semiconductor Corporation Coupled inductor with improved leakage inductance control
US8174348B2 (en) 2009-12-21 2012-05-08 Volterra Semiconductor Corporation Two-phase coupled inductors which promote improved printed circuit board layout
US8237530B2 (en) 2009-08-10 2012-08-07 Volterra Semiconductor Corporation Coupled inductor with improved leakage inductance control
US8299885B2 (en) 2002-12-13 2012-10-30 Volterra Semiconductor Corporation Method for making magnetic components with M-phase coupling, and related inductor structures
US8330567B2 (en) 2010-01-14 2012-12-11 Volterra Semiconductor Corporation Asymmetrical coupled inductors and associated methods
WO2013061220A1 (en) 2011-10-25 2013-05-02 Brusa Elektronik Ag Inductive component and use
FR2982068A1 (fr) * 2011-11-02 2013-05-03 Valeo Sys Controle Moteur Sas Dispositif electromagnetique et actionneur electromagnetique correspondant
US8674802B2 (en) 2009-12-21 2014-03-18 Volterra Semiconductor Corporation Multi-turn inductors
US9019063B2 (en) 2009-08-10 2015-04-28 Volterra Semiconductor Corporation Coupled inductor with improved leakage inductance control
DE202020101764U1 (de) 2019-04-08 2020-06-28 Premo, S.A. Transformator verwendet als Reiheninduktor für ZVS- oder LLC-Resonanzwandler

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1439441A1 (de) * 1963-09-18 1968-12-05 Sits Soc It Telecom Siemens Verlustarme Spulenwicklung fuer eine Induktivitaet
US3480896A (en) * 1967-11-01 1969-11-25 Components Corp Adjustable inductor
EP0003396A1 (de) * 1978-02-01 1979-08-08 Imperial Chemical Industries Plc Steuerkreis zum Erregen einer elektrisch gezündeten Last

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1439441A1 (de) * 1963-09-18 1968-12-05 Sits Soc It Telecom Siemens Verlustarme Spulenwicklung fuer eine Induktivitaet
US3480896A (en) * 1967-11-01 1969-11-25 Components Corp Adjustable inductor
EP0003396A1 (de) * 1978-02-01 1979-08-08 Imperial Chemical Industries Plc Steuerkreis zum Erregen einer elektrisch gezündeten Last

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8299885B2 (en) 2002-12-13 2012-10-30 Volterra Semiconductor Corporation Method for making magnetic components with M-phase coupling, and related inductor structures
US9147515B2 (en) 2002-12-13 2015-09-29 Volterra Semiconductor LLC Method for making magnetic components with M-phase coupling, and related inductor structures
US7746209B1 (en) 2002-12-13 2010-06-29 Volterra Semiconductor Corporation Method for making magnetic components with N-phase coupling, and related inductor structures
US8779885B2 (en) 2002-12-13 2014-07-15 Volterra Semiconductor Corporation Method for making magnetic components with M-phase coupling, and related inductor structures
US7864016B1 (en) 2002-12-13 2011-01-04 Volterra Semiconductor Corporation Method for making magnetic components with N-phase coupling, and related inductor structures
US7893806B1 (en) 2002-12-13 2011-02-22 Volterra Semiconductor Corporation Method for making magnetic components with N-phase coupling, and related inductor structures
US7965165B2 (en) 2002-12-13 2011-06-21 Volterra Semiconductor Corporation Method for making magnetic components with M-phase coupling, and related inductor structures
US8836461B2 (en) 2002-12-13 2014-09-16 Volterra Semiconductor Corporation Method for making magnetic components with M-phase coupling, and related inductor structures
US9019064B2 (en) 2002-12-13 2015-04-28 Volterra Semiconductor Corporation Method for making magnetic components with M-phase coupling, and related inductor structures
US8786395B2 (en) 2002-12-13 2014-07-22 Volterra Semiconductor Corporation Method for making magnetic components with M-phase coupling, and related inductor structures
US7772955B1 (en) 2002-12-13 2010-08-10 Volterra Semiconductor Corporation Method for making magnetic components with N-phase coupling, and related inductor structures
DE10349401B3 (de) * 2003-10-21 2004-07-29 Grenzebach Bsh Gmbh Furniertrockner
US8294544B2 (en) 2008-03-14 2012-10-23 Volterra Semiconductor Corporation Method for making magnetic components with M-phase coupling, and related inductor structures
WO2009114872A1 (en) * 2008-03-14 2009-09-17 Volterra Semiconductor Corporation Magnetic components with m-phase coupling, and related inductor structures
US8836463B2 (en) 2008-03-14 2014-09-16 Volterra Semiconductor Corporation Voltage converter inductor having a nonlinear inductance value
US9627125B2 (en) 2008-03-14 2017-04-18 Volterra Semiconductor LLC Voltage converter inductor having a nonlinear inductance value
US8237530B2 (en) 2009-08-10 2012-08-07 Volterra Semiconductor Corporation Coupled inductor with improved leakage inductance control
US8102233B2 (en) 2009-08-10 2012-01-24 Volterra Semiconductor Corporation Coupled inductor with improved leakage inductance control
US9019063B2 (en) 2009-08-10 2015-04-28 Volterra Semiconductor Corporation Coupled inductor with improved leakage inductance control
US7994888B2 (en) 2009-12-21 2011-08-09 Volterra Semiconductor Corporation Multi-turn inductors
US8674802B2 (en) 2009-12-21 2014-03-18 Volterra Semiconductor Corporation Multi-turn inductors
US8890644B2 (en) 2009-12-21 2014-11-18 Volterra Semiconductor LLC Two-phase coupled inductors which promote improved printed circuit board layout
US8362867B2 (en) 2009-12-21 2013-01-29 Volterra Semicanductor Corporation Multi-turn inductors
US9281115B2 (en) 2009-12-21 2016-03-08 Volterra Semiconductor LLC Multi-turn inductors
US8174348B2 (en) 2009-12-21 2012-05-08 Volterra Semiconductor Corporation Two-phase coupled inductors which promote improved printed circuit board layout
US8330567B2 (en) 2010-01-14 2012-12-11 Volterra Semiconductor Corporation Asymmetrical coupled inductors and associated methods
WO2013061220A1 (en) 2011-10-25 2013-05-02 Brusa Elektronik Ag Inductive component and use
FR2982068A1 (fr) * 2011-11-02 2013-05-03 Valeo Sys Controle Moteur Sas Dispositif electromagnetique et actionneur electromagnetique correspondant
DE202020101764U1 (de) 2019-04-08 2020-06-28 Premo, S.A. Transformator verwendet als Reiheninduktor für ZVS- oder LLC-Resonanzwandler

Also Published As

Publication number Publication date
NL8303994A (nl) 1985-06-03
JPS60216521A (ja) 1985-10-30

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19851120

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19860410

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HOEKSMA, GERBEN SIMON